Evaluating the Chinese-English Translations in Duolingo

Language apps are everywhere these days, even sneaking into your daily routine with friendly reminders to practice. Among them, Duolingo stands out as a popular choice for learners around the world. But here’s a question worth asking: how accurate are the translations it accepts and rejects? When you get marked wrong, is it really because your answer is incorrect, or just because it doesn’t match what the app expects?

Evaluating the Chinese-English Translations in Duolingo is a study that examines the accuracy of translations produced by students compared with those provided by Duolingo. The researchers – Clara Herlina Karjo and Mei Rianto Chandra – aimed to identify structural and semantic differences between Chinese-English translations and evaluate whether Duolingo’s accepted answers fairly represented correct translations. The study involved 35 university students in Jakarta, consisting of 20 Chinese Department students and 15 English Department students. Using Duolingo lessons about sports, students were asked to translate full sentences from Chinese to English and from English to Chinese. The researchers then qualitatively analyzed the translation results to determine patterns of errors and inconsistencies.

The findings revealed that many students’ translations were marked incorrect by Duolingo due to insufficient knowledge of sentence structures in Chinese and English, as well as reliance on word-by-word translation. However, the study also found that some student translations conveyed the same meaning as Duolingo’s answers but were still rejected because they did not match the platform’s predefined translation format. This means that Duolingo tends to accept only one standardized translation, even though multiple variations may be equally correct in real communication.

The study identified several common sources of translation errors. one of them being the placement of time phrases. In Chinese, time expressions usually appear at the beginning of a sentence, while English allows more flexible placement. Students often translated sentences using English structure, which resulted in translations considered incorrect in Chinese, despite conveying the same meaning. Another frequent issue involved the use of grammatical particles such as “le” in Chinese, which students often omitted or misunderstood, leading to incorrect translations. Differences in adjective placement, question structure, and verb repetition in superlative forms also contributed to translation difficulties.

The findings also showed that literal translation frequently caused problems. Students tended to translate sentences word by word. This often resulted grammatically incorrect sentences. For example, differences in noun phrases, verb forms, and sentence structures between Chinese and English made direct translation ineffective. In some cases, students selected alternative vocabulary that still conveyed the intended meaning, but Duolingo rejected these answers because they did not match the platform’s predetermined vocabulary choices.

Another important finding is that Duolingo’s heavy reliance on translation exercises may lead to a simplified understanding of language learning. The platform introduces grammar concepts gradually but often provides limited explanations, which makes it difficult for learners to understand complex grammatical structures. As a result, learners may struggle to develop deeper comprehension of language patterns and rely more on memorization rather than understanding.

The study concludes that while Duolingo is useful for beginner learners and provides structured translation exercises, its limited acceptance of alternative translations and minimal grammatical explanations can hinder language learning. The findings suggest that Duolingo should allow multiple acceptable translations and provide more comprehensive grammar guidance. This would better reflect real-world language use, where multiple expressions can communicate the same meaning effectively.

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